<script setup>
 import {getCategoryFilterAPI, getSubCategoryAPI} from "@/apis/category.js";
 import { ref, onMounted } from 'vue'
 import {useRoute} from "vue-router";
 import GoodsItem from '@/views/Home/components/GoodsItem.vue'

 // 获取面包屑导航数据
 const route = useRoute()
 const categoryData = ref({})
 const getCategoryData = async () => {
   const res = await getCategoryFilterAPI(route.params.id)
   categoryData.value = res.result
 }

 onMounted(() => {
   getCategoryData()
 })

 // 获取基础列表数据渲染
 const goodList = ref([])
 const reqData = ref({
   categoryId: route.params.id,
   page: 1,
   pageSize: 20,
   sortField: 'publishTime'
 })

 const getGoodList = async () => {
   const res = await getSubCategoryAPI(reqData.value)
   console.log(res)
   goodList.value = res.result.items
 }
 onMounted(() => getGoodList())


 // tab切换回调
 const tabChange = () => {
   console.log('tab切换了', reqData.value.sortField)
   reqData.value.page = 1
   getGoodList()
 }

 //加载更多
 const disabled = ref(false)
 const load = async () => {
   console.log("加载更多数据")
   //获取下一页数据
   reqData.value.page++
   const res = await getSubCategoryAPI(reqData.value)
   goodList.value = [...goodList.value, ...res.result.items]
   // 加载完毕，停止监听
   if (res.result.items.length === 0) {
     disabled.value = true
   }
 }

</script>

<template>
  <div class="container ">
    <!-- 面包屑 -->
    <div class="bread-container">
      <el-breadcrumb separator=">">
        <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item :to="{ path: `/category/${categoryData.parentId}` }">{{ categoryData.parentName }}
        </el-breadcrumb-item>
        <el-breadcrumb-item>{{ categoryData.name }}</el-breadcrumb-item>
      </el-breadcrumb>
    </div>
    <div class="sub-container">
      <el-tabs v-model="reqData.sortField" @tab-change="tabChange">
        <el-tab-pane label="最新商品" name="publishTime"></el-tab-pane>
        <el-tab-pane label="最高人气" name="orderNum"></el-tab-pane>
        <el-tab-pane label="评论最多" name="evaluateNum"></el-tab-pane>
      </el-tabs>

      <div class="body" v-infinite-scroll="load" :infinite-scroll-disabled="disabled">
        <!-- 商品列表-->
        <GoodsItem v-for="good in goodList" :good="good" :key="good.id" />
      </div>


    </div>
  </div>

</template>



<style lang="scss" scoped>
.bread-container {
  padding: 25px 0;
  color: #666;
}

.sub-container {
  padding: 20px 10px;
  background-color: #fff;

  .body {
    display: flex;
    flex-wrap: wrap;
    padding: 0 10px;
  }

  .goods-item {
    display: block;
    width: 220px;
    margin-right: 20px;
    padding: 20px 30px;
    text-align: center;

    img {
      width: 160px;
      height: 160px;
    }

    p {
      padding-top: 10px;
    }

    .name {
      font-size: 16px;
    }

    .desc {
      color: #999;
      height: 29px;
    }

    .price {
      color: $priceColor;
      font-size: 20px;
    }
  }

  .pagination-container {
    margin-top: 20px;
    display: flex;
    justify-content: center;
  }


}
</style>
